Llyn yr Oerfel, Gwynedd

• Parish/Community: Maentwrog
• Unitary Authority: Gwynedd
• Region: Wales

• Category: Water Feature
• Type: Other Water Feature

• Latitude/Longitude: 52°55'42"N 3°54'47"W
• Eastings/Northings: 271500, 338500
• OS Grid: SH715385
• Mapcode Local: GBR 5Z.MHYF
• Mapcode Global: WH55P.VNT9

Location and coordinates are for the approximate centre of Llyn yr Oerfel within this administrative area. Geographic features and populated places may cross administrative borders.